libretro-prboom

This wrapper makes PrBoom API compatible with libretro, thus allowing its use
with libretro frontends, such as RetroArch.
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PrBoom is the culmination of years of work by various people and projects on
the Doom source code. PrBoom includes work from original Doom source release
(by id Software), DosDoom, Boom, MBF, LxDoom and ISDLDoom. Of course ideas
were exchanged with many other Doom ports, including xdoom, and Eternity.
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PrBoom plays Doom, Doom II, Final Doom and other Doom IWAD mods.